摘要
鉴于Pall型摩擦阻尼普通支撑会对框架边柱产生附加轴力,考虑采用防屈曲支撑来代替普通支撑,使支撑充分发挥作用,同时不会对边柱产生增长的附加轴力,为防屈曲支撑在Pall型摩擦阻尼支撑体系中的应用奠定基础.由于Pall型摩擦阻尼器滞回特性不受支撑屈曲力影响的特性,故采用普通钢板来代替防屈曲支撑进行Pall型摩擦阻尼支撑体系试验研究,同时对此支撑体系在考虑几何非线性情况下进行有限元AN-SYS仿真分析.对比试验结果和仿真分析结果,表明试验结果与仿真分析结果得出的Pall型摩擦阻尼器摩擦力和支撑内力的变化规律基本相同,为下一步采用防屈曲支撑体系进行试验研究奠定基础.
Because the general braces of Pall-typed frictional dampers（PFD） will produce additional axial forces on side columns in frames,buckling-restrained braces（BRB）,which would not generate additional axial force on side columns,are adopted to replace the general braces to make the braces act fully in this paper.An experimental research on the Pall-typed frictional damping performance,in which an ordinary steel plate is used instead of the BRB core plate,is carried out,for the hysteresis behaviors of the Pall-typed friction damper are not affected by brace buckling forces.Meanwhile a nonlinear finite element analysis on this brace system is also made.The test results and simulation results show that the variation with displacement of the Pall friction force is nearly the same as that of the brace force,which can be a reference for PFD-BRB brace system tests.
出处
《青岛理工大学学报》
CAS
2012年第2期1-5,共5页
Journal of Qingdao University of Technology
基金
国家自然科学基金资助项目(50809032)
山东省优秀中青年科学家科研奖励基金(博士基金)项目(BS2010HZ008)
海岸和近海工程国家重点实验室开放基金项目(LP1009)
中国博士后科学基金第二批特别资助项目(200902540)
关键词
PALL型摩擦阻尼器
防屈曲支撑
几何非线性
ANSYS
Pall-typed frictional damper（PFD）
buckling-restrained brace（BRB）
geometric nonlinearity
ANSYS
